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revision 1.75 by jmc, Thu Jun 20 23:52:03 2002 UTC revision 1.380 by dimitri, Tue Nov 2 23:57:29 2004 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
6    o make all subroutines 30 or less characters in length for certain older
7      compilers to work (a thorough search only turns up two routines in
8      pkg/ptracers)
9    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
10      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
11    
12    checkpoint55i_post
13    o change arrays for total vertical diffusivity (2.D if explicit,
14      3.D if implicit) ; each ptracer uses its own background value.
15    o added mnc/NetCDF output capability to ocn_compon_interf
16      - added bits to verification/cpl_aim+ocn so that it can run on
17        ITRDA and other clusters without the mpirun "-wd" option
18    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
19      configuration
20    o give MNC the ability to create additional files rather than
21      exceeding a specified file size limit "MNC_MAX_FILESIZE"
22      - the default is just less than 2GB which is a practical limit
23        on many systems
24    o Compute the non-local term using either KPP vertical diffusivity (=default)
25       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
26    
27    checkpoint55h_post
28    o add verification test "vermix"
29    o remove all the *_ioinc flags and replace with the single global
30      outputTypesInclusive flag
31    o allow to set a vertical profile of vertical diffusivity for T & S
32    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
33    o useMNC moved from data.mnc to data.pkg
34    
35    checkpoint55g_post
36    o Renaming carbon AD experiments to comply with testreport conventions
37    o Updating adjoint of Held-Suarez hs94.1x64x5
38    o Fixing directives for non-ECCO forward_step, after ECCO directives
39      have been fixed to avoid recomp. of do_oceanic_phys
40      Works well for global_ocean.90x40x15,
41      but recomp. issue remains for carbon
42    o Updating adjoint output for natl_box_adjoint after
43      pkg/ecco has been modified (see taga c55d_post)
44    
45    checkpoint55f_post
46    o rename to timeave_init_fixed
47    
48    checkpoint55e_post
49    o some delicate re-shuffle of store directives to avoid one
50      extra call of do_oceanic_physics
51      affects ecco_the_main_loop.F, do_oceanic_physics.F
52      checkpoint_lev1_directives.h
53    o NB: this may break global_ocean adjoint temporarily,
54      but it is clear how to fix it. Will do later, need this now.
55    
56    checkpoint55d_post
57    o ECCO specific cost function terms (up-to-date with 1x1 runs)
58    o ecco_cost_weights is modified to 1x1 runs
59    o modifs to allow observations to be read in as
60      single file or yearly files
61    o enable to read exf forcing fields as either
62      single file or yearly files (flag useExfYearlyFields)
63    checkpoint55d_pre
64    
65    o switch between 2-level and 3-level checkpointing
66    o add ability of MNC to write local and "partial" (eg. 2D slices where
67      the full 3D field is never actually stored) arrays to NetCDF files
68      with the correct (that is, the complete multi-dimensional) set of
69      array indicies
70      - used in mom_vecinv() to write the diagFreq output
71      - tested (demonstrated) in verification/aim.5l_cs
72    o further mnc-ification
73      - add verification/lab_sea to the list with mnc setups
74      - fix undefined mnc v-names in cd_code
75      - add kpp to mnc output (both snapshot and timeave)
76    o non-hydrostatic code
77      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
78        in calc_gw.F
79      - defaults to viscAh
80      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
81        friction or Leith) in non-hydrostatic mode, as long as there is
82        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
83    o pkg/cost
84      extend simple cost functions to treat time mean quantities
85      (T,U,V) via cost_accumulate_state from cost_tile
86    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
87        be 2 times larger than the minimum size the advection scheme requires.
88        now get a perfect conservation of salt in advect_cs test-exp (updated)
89    o GGL90 (Gaspar's TKE mixed layer)
90      - add horizontal diffusion of TKE, requires exchanges in
91        do_fields_blocking_exchanges, horizontal diffusivity is zero by
92        default. In OPA there is no horizontal diffusion of TKE but the
93        mixing coefficients are computed from a horizontal average of TKE of
94        6 points or so. I think that diffusion has a little more physical
95        justification.
96      - clean up ggl90_calc in the hope of reducing memory usage (this hope
97        was in vain)
98      - mask tke-variable in ggl90_init
99    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
100    o fix biharmonic diffusion on CS-grid.
101    o more obcs stuff
102      - added obcs_external_fields_load as an alternative to the EXF-pkg option
103        for reading boundary values. This routine is called from
104        obcs_prescribe_read
105      - updated obcs_check
106      - changed sponge layer relaxation parameter units for days to seconds
107      - turned off sponge layer by default
108      - changed argument list of OBCS_CALC to myTime+deltaTclock
109      - fixed about 35 bugs in obcs_external_fields_load
110    
111    checkpoint55c_post
112    o obcs stuff
113      - new runtime flags useOBCSprescribe, useOBCSbalance
114      - re-arranged obcs_calc
115      - moved exf_getobcs to obcs_prescibe_read
116        obcs_prescibe_read is called after ORLANSKI stuff
117        and independent of it (executable can contain all).
118      - updated obcs_check
119      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
120        These may be necessary only if tangential velocities are
121        prescribed at OB, not sure, needs testing.
122    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
123      which simplifies the calls and passes the ifc check-bounds test
124    
125    checkpoint55b_post
126    o add a 2D scalar, Z location, exchange_2 routine.
127    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
128      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
129      affects advect_cs results (for the wrong reason): update output.txt
130    o use a more standard discretization for biharmonic viscosity ;
131     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
132      affects results of dome set-up: update output.txt
133    o fix gad_advection.F (CubedSphere part), back to version 1.23
134    o fix bug in mom_vi_del2uv.F (CubedSphere part).
135    
136    checkpoint55a_post
137    o merged code to
138      * prescribe/read time-dependent open boundaries
139        (works in conjunction with exf, cal)
140      * sponge layer code for open boundaries
141      * each boundary N/S/E/W now has its own CPP option
142        (healthy for the adjoint)
143    
144    checkpoint55
145    o up-to-date adjoint of previous breaks
146      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
147      - global_ocean_ebm: adjoint still needs fix (TLM ok)
148      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
149      - carbon: * remove tr1-related adjoint verification
150                * add ptracer as control variable
151    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
152      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
153    
154    checkpoint54f_post
155    o in verification/carbin/ remove experiment related to
156      ALLOW_PASSIVE_TRACER (array tr1 etc)
157      code_ad/ input_ad/ results_ad
158    
159    o add two new packages
160      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
161        + subject to optimization (memory)
162      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
163        + subject to reordering (many GOTOs in the original code)
164        + so far opps is called for every (i,j) point, and then operates in
165          the vertical; one may want to reorder the scheme in order operate in
166          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
167          fields)
168    o overhaul of IO so that we now have flags for MDSIO and/or MNC
169      - all verification tests compile and run with linux_ia32_g77
170      - defaults are compatible with current input files--nothing
171        should change if you were not previously using MNC
172      - MNC output has been added in numerous places (eg. timeave)
173        but there are still a few writes not yet do-able with MNC
174        (this is in progress)
175      - flags now allow for either/or/both use of MDSIO and MNC and
176        documentation will soon follow
177      - numerous small formatting cleanups for ProTeX
178    o add version info (via BUILD_INFO.h) to MNC and stdout
179    
180    checkpoint54e_post
181    o add two new packages
182      - pp81 (Packanowski and Philander, 1981), Richardson number and
183        stratification dependent mixing
184      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
185      - these scheme operate in a similar manner as KPP (without ghat, of
186        course), however there is only one diffusivity that is used for both
187        temperature and salinity (and passive tracers)ç
188    o add offline package
189    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
190      provided by Stephanie Dutkiewicz
191    o genmake2: add ability to search for C compilers and cleanup test output
192      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
193    
194    checkpoint54d_post
195    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
196    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
197      leading to additional shift by 5 days each year of integration
198       (i.e. leading to considerable offset over the years)
199    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
200    o start with no AB and no initial filtering (staggerTimeStep):
201      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
202    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
203      (external loading & cpl import/export stay in forward_step.F)
204    o update coupling interface to work with new staggerTimeStep
205    o change MDSIO ptracers_pickup.
206    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
207    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
208    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
209    
210    checkpoint54c_post
211    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
212      this affects (truncation error) output.txt of test-exp:
213       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
214    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
215    o change Qnet to always be the net heat flux, (+upward).
216      affects (truncation error) output of natl_box exp.: updated
217    o define the max number of passive tracers in PTRACERS_SIZE.h
218    o start to test mnc routinely in exp0
219    o add sea-ice loading (sIceLoad) as a new forcing field.
220    
221    checkpoint54b_post
222    o add testreport "-j JOBS" option for parallel builds (tested and pretty
223       impressive on Altix and Opteron systems)
224    o diagnostics can now write NetCDF files through the mnc package
225    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
226    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
227    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
228      affects (truncation error) output of lab_sea & natl_box exp.: updated
229    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
230    
231    checkpoint54a_post
232    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
233    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
234    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
235    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
236      + internal_wave (shift in writing cg2d_ini_res)
237    checkpoint54a_pre
238    
239    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
240      - modified verification/lab_sea and natl_box_adjoint accordingly
241    
242    checkpoint54
243    checkpoint53g_post
244    o prepare splitting of thermodynamics: store convect.counter in common block
245    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
246      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
247    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
248    o new parameter "nShapS": allow to treat differently S from T (nShapT)
249    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
250    o restore adjointability
251    
252    checkpoint53f_post
253    o modifications that affect AIM experiment results (update output.txt):
254      - no advection of S at top interface Nr (pkg/generic_advdiff)
255      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
256    o AIM pkg:
257      - include stability function into surf.Flux derivative relative to Tsurf
258      - calculate clear-sky radiation & surface temp. change (for diagnostics)
259    
260    checkpoint53e_post
261    o merged cylindrical coord configuration
262    o added rotating_tank experiment
263    checkpoint53e_pre
264    
265    checkpoint53d_post
266    o faulks upgraded: re-generate output.txt that have changed:
267       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
268    o Added Bryan and Lewis, 1979, vertical diffusivity profile
269    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
270    o added Sadourny discretization of Coriolis
271      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
272      - re-enabled use of omega3 (useAbsVorticity)
273    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
274      vector-invariant equations
275      - note: does *NOT* yet use same variable visc. for no-slip BC's.
276    o recoded the lateral boundary conditions for non-hydrostatic w, this time
277      hopefully without new bugs
278      - still to do: biharmonic friction for non-hydrostatic w
279    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
280    o regenerated output for global_ocean_ebm (using -ieee)
281    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
282      of mom_common/
283      - simple re-arrangement of instructions within computing loop
284    checkpoint53d_pre
285    
286    checkpoint53c_post
287    o new version of coupler for AIM+thSIce and Ocean models
288     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
289     - land: change Evaporation of snow
290     - aim with thSIce: fix bug in snow-precip.
291    o changes to calc_gw.F
292     - bug fix for w^2 term near the bottom boundary
293     - (hopefully) improve the lateral slip boundary condtions for use with
294        partial/looped cells
295      - because the bug fix changes two verification experiments anyway (exp5
296        and plume on slope), change the lateral boundary condition from half slip
297        to the value of no_slip_sides
298    o ebm package wasnt quite up to the parallel task. Fixed that.
299    o Adjoint of EBM package + verification
300      * TLM OK
301      * ADM not sufficient accuracy yet (needs further testing)
302    
303    checkpoint53b_post
304    o Commiting new energy balance model to repository
305      * package is pkg/ebm
306      * verif. is verification/global_ocean_ebm
307      * references are in ebm_driver.F
308    C      * X. Wang, P. Stone and J. Marotzke, 1999:
309    C        Global thermohaline circulation. Part I:
310    C        Sensitivity to atmospheric moisture transport.
311    C        J. Climate 12(1), 71-82
312    C      * X. Wang, P. Stone and J. Marotzke, 1999:
313    C        Global thermohaline circulation. Part II:
314    C        Sensitivity with interactive transport.
315    C        J. Climate 12(1), 83-91
316    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
317    C        Destabilization of the thermohaline circulation
318    C        by atmospheric eddy transports.
319    C        J. Climate 7(12), 1870-1882
320    o Will need long integration testing.
321    checkpoint53b_pre
322    
323    o created pkg/mom_common in preparation for variable viscosity code
324    o renamed and split ini_mnc_io
325    o pkg/land: only liquid water can diffuse or run-off
326    o AIM using land: soil wetness availability account for snow
327    o added printMapIncludesZeros to EEPARMS namelist
328    
329    checkpoint53a_post
330    o restore TAMC compatiility for exf_constants.h
331      (no usage of _d in .h)
332    o Additional storing in KPP in an attempt to fix
333      TAMC problem with adjoint of KPP code.
334      (no success...)
335      Identical code works fine with TAF.
336    o Fixed verification/natl_box_adjoint experiments.
337      Initial conditions for Experiments 4 and 5 are now
338      set to "SEAICE_initialHEFF=0", which is more reasonable,
339      and hence gives results closer to that of Experiment 2.
340      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
341    
342    checkpoint53
343    o stable checkpoint with up to date adjoint
344      TLM tests only run for 1st grdchk at the moment. Its unclear if
345      this is a code problem or a problem with resetting code for g_
346      variables that is being autogenerated wrong.
347      Otherwise:
348       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
349       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
350         are both still in chaos following their security messes.
351    
352    checkpoint52n_post
353    o various build (mostly genmake2) changes including:
354      - ability to build/run more easily within Cygwin and MacOS X
355      - more complicated Makefiles with a stronger dependence on Gnu Make
356    o pkg/seaice modifications
357      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
358        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
359        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
360      - changed proxy for geostrophic velocity and updated
361        verification/lab_sea/results/* accordingly
362      - removed ADI dynamic solver from pkg/seaice
363      - replaced all occurrences of 1/CSTICE or 1/CSUICE
364        they caused a segmentation fault under certain circumstances
365      - removed unused field WATR
366    o bug fix in exf-package:
367      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
368         now reflect that.
369    o small fixes in the cal-package:
370      - set reference date to first of January for the 'model'-calendar
371      - failing of cal_CheckDate in cal_FullDate now actually results in a
372        warning
373    o small modifications in exf-package to increase flexibility:
374      - change climtempfreeze from a constant to a runtime parameter that
375        is specified in data.exf_clim (default = -1.9)
376      - introduce runtime parameter windstressmax (default = 2.0) that is
377        specified in data.exf
378    o fix in pkg/thsice:
379      - update Evap (Tsf changes) to be consistent with Latent heat flux
380      - maintain snow precipitation unchanged (even if Tsf >=0).
381     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
382    
383    checkpoint52m_post
384    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
385      this does not change any of the results, because myIter=0 in swfrac always
386      lead to jwtype=2 (the default anyway), but the call makes little sense
387      as a default
388    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
389    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
390      atmospheric model (AIM) to use it ; add a "slab ocean" component.
391    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
392    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
393    o extending useSingleCpuIO option to work with new exch2 I/O format
394      - old-style, missing-tile I/O is still accessible by defining CPP
395        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
396    o monitor package can write to NetCDF files and/or STDOUT
397    o fix re-definition bug in MNC_GRID_INIT_ALL()
398    o doc/api_reference added
399      - a framework for building an API Reference Manual using all
400        the "protex" comments embedded in the code
401      - see pkg/generic_advdiff, pkg/mnc for examples
402    o MNC:
403      - make myThid the last argument for all subroutines
404      - new default for the grid files: NO halos
405      - add useMNC and other run-time flags
406      - separate per-file-group handling of the unlimited dimension
407      - early initialization of MNC w/ flags read at the eeboot stage
408        and lookup tables set in initialize_fixed
409      - write all MNC output to a freshly-created directory
410    o thermodynamics sea-ice (thsice) is now tested with testreport.
411    o test exp. advect_cs: use the standard cs32 grid ; update output.
412    o Added functionality to grdchk:
413      pick global i,j,k position (or nearest wet) where to perform check.
414    
415    checkpoint52l_post
416    o new land formulation:
417      a) use ground enthalpy as prognostic variable to ensure exact
418         energy conservation.
419      b) account for water temperature and for latent heat of freezing
420         in all processes (rain, run-off, ground storage)
421      c) compute surface and ground temperature implicitly.
422    o aim_v23 modification for new land model:
423      a) Treat separately land / ocean / sea-ice surface fluxes
424         to allow implicit computation of land & sea-ice surface temp.
425      b) add snow precipitation.
426    checkpoint52l_pre
427    
428    o fix problem (when 1 tile is empty) in min/max monitor.
429    o fix bug in timeAve (u,vZetatave in common block)
430    o no restoring terms under ice for pkg/seaice
431    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
432    o bug fix for pkg/seaice pickups
433    o change MNC call locations and add coordinate attributes
434    o mask vorticity at the corner ; affects global_ocean.cs output
435    o fix ini_curvilinear_grid ; test CS experiments with mpi
436    o aim.5l_cs: modify sea-ice fraction input file ; update output
437    o exf: Adding simple range check routine for exf fields after read
438    
439    checkpoint52k_post
440    o removed top-level directory "diags"
441      - we migrated these functions to pkg/timeave a long time ago
442    o fixed bug introduced in pkg/monitor
443    o accuracy ctrlprec = 32 insuffient for gradient checks using
444      averaged fields (I/O via cost_averages)
445      -> use ctrl.h in active_file*.F to control I/O precision.
446    o paramter list of CALL ADTHE_MAIN_LOOP
447    o added initial do_the_model_io to ecco
448    o set all ...Freq to zero after cost_final
449      taveFreq, dumpFreq, pChkptFreq
450    o MAIN and ECCO differentiability restored
451    
452    checkpoint52j_post
453    o fix nchklev in tamc.h for global_ocean...
454    o Bringing flow and store directives up-to-date
455    o Really weird thing!
456      call do_the_model_io from the_main_loop with parameters
457      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
458      TAF places a faulty re-call of initialise_varia
459      after cost_final call which should not be there!
460    checkpoint52j_pre
461    
462    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
463      error messages
464    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
465    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
466      debug output
467    o modfied mdsio_writefield.F to handle non-global files under exch2
468    o update AIM Cubed-Sphere exp (aim.5l_cs):
469      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
470    o update AIM Equatorial Channel exp:
471      use standard aim_v23 pkg and change the SST fields to be more realistic.
472    o globalFile now works with exch2
473    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
474      mon_vort3.F to make exch2 friendly with >1 tile per cube face
475    o limit timeave output for hi-res integrations
476    
477    checkpoint52i_post
478    o removed CPP_EEOPTIONS.h from verification/*/code
479    o updated the tiling for global_ocean_pressure
480    checkpoint52i_pre
481    
482    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
483      the old pkg/aim).
484    
485    checkpoint52h_pre
486    o shortened offending lines in exch2_send_rx?.template
487    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
488    o genmake2: add build & execute test for NetCDF code
489    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
490      old grid files, moved CPP_EEMACROS.h to pkg/exch2
491    o added useSingleCPUIO flag to monitor.F and mon_out.F
492    o added temporary hack for sea-ice dynamics on the cube:
493      metric terms are ignored and it is assumed that
494      there is no sea-ice on cube faces 1, 2, 4, and 5.
495    
496    checkpoint52f_post
497    o added exch2 cube routines to pkg/exch2
498    o modified hs94.cs-32x32x5 to use it
499    o added new grid files to hs94.cs-32x32x5
500    checkpoint52f_pre
501    
502    checkpoint52e_post
503    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
504      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
505    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
506      to work with implicit vertical advection and AB ;
507    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
508    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
509     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
510    checkpoint52e_pre
511    
512    o fix bug in impldiff when Nr=1 or Nr=2.
513    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
514    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
515    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
516      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
517    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
518    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
519    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
520    
521    checkpoint52d_post
522    o re-tiled many expts to allow comparison in multi-processor mode
523      - updated output accordingly
524      - changed hs94.128x64x5 to use intial T from file rather than use the
525        random number generator
526    o add infrastructure in model routines for fizhi and gridalt packages
527    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
528    o changes to permit hi-res, cubed-sphere, configuration
529      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
530      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
531      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
532        of surface winds for the cube
533      (A verification experiment, based on global_ocean.cs32x15, but with
534       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
535       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
536       complete with example surface forcing files and matlab scripts to look
537       at the output and compare it with that of global_ocean.cs32x15.)
538    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
539       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
540       to conform to the common rule.
541    o check-in the first version of the coupler + interfaces for multi-components
542       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
543       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
544       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
545       - ocean and atmos. share the same horizontal grid (no interpolation).
546       - exchanges between component and coupler is done in forward_step
547    o new verification experiment, cpl_aim+ocn:
548       coupled ocean - AIM atmosphere on cs32 grid.
549    
550    checkpoint52d_pre
551    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
552    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
553    
554    checkpoint52c_post
555    o Fixing OPTIONS files for use of exf:
556      - ALLOW_ECCO not needed
557      - ECCO_CPPOPTIONS.h should not be included from
558        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
559        as has been the case in the past
560      - All cal/exf related options are currently set in
561        single header file. Should remain so until we
562        agree on a consistent new policy.
563    o Removed all CPP options for cal package.
564      cal has no more CPP options.
565    o modified STOREs in GAD_ADVECTION
566    o corrected key comp. for passkey
567    
568    checkpoint52b_post
569    o new version: "thsice" of thermodynamic sea-ice pkg:
570     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
571     - modify fluxes but do not change theta directly;
572     - light cleaning of bulk_force pkg (still needed with thsice).
573     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
574       + output_thsice.txt to test thsice & bulk_force pkgs.
575    o put back grid & coriolis monitor output.
576    checkpoint52b_pre
577    
578    o call "do_the_model_io" at the beginning (=> dump initial state)
579    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
580    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
581      (need info on NUMBER_OF_PTRACERS)
582    o missing PTRACERS headers in some routines
583    o default tamc.h in pkg/autodiff supposed to crash
584      to ensure proper customization
585    
586    checkpoint52a_post
587    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
588      - moved surfaceTendencyTice from pkg/seaice to main code
589      - subroutine FREEZE_SURFACE now limits only surface temperature
590        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
591        => new output.txt for global_ocean.cs32x15 & global_with_exf
592      - keep the old version of FREEZE for backward compatibility;
593        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
594      - corresponding modifs for TAF directives
595    o added surface flux output variables to TIMEAVE_STATVARS
596    o time-averaged output for pkg/ptracers
597    o fix problem with ECCO-related divided adjoint
598      snapshot file was missing some ad-variables,
599      but no warning issued by TAF
600    
601    checkpoint52a_pre
602    o some bug fixes for #undef REAL4_IS_SLOW
603    
604    checkpoint52 = ecco_c52_e35
605    o after testing adjoints of checkpoint51u_post
606    
607    checkpoint51u_post
608    o this is the post-merge tag of the ecco-branch
609      (needs another clean checkout and re-testing)
610    o various natl_box_adjoint configs and results
611      but no input fields
612    o obcs adjoint not yet merged!
613    o adding ECCO global 1x1 and 2x2 degree configs
614    o updated/extended some store directives for seaice
615    o pkg/ecco now containes ecco-specific part of cost function
616    o top level routines the_main_loop, forward_step
617      supersede those in model/src/
618      previous input data.cost now in data.ecco
619      (new namelist ecco_cost_nml)
620    o in ctrl/ cleaned some cross-dependencies and updated CPP options
621    
622    checkpoint51t_post
623    o this is the pre-merge tag of the ecco-branch
624    
625    checkpoint51s_post
626    o cleanup: removed various obsolete #define-s
627    o pkg/grdchk
628      - renamed 'ph-grd 3' to 'grad-res'
629      - merged from ecco-branch
630        (remaining bug fixes for obcs gradient checks)
631      - additional high-precision output for testreport
632        (grep for 'precision_grdchk_result')
633    
634    checkpoint51r_post
635    o cleaned up or removed CPP_OPTIONS.h files
636    o updated results for some of the tests to reflect the new
637      optfiles (-ieee: -O0 instead of -O3)
638    
639    checkpoint51q_post
640    o cd_code:
641      - moved cd_scheme.F -> cd_code_scheme.F
642      - separate read_checkpoint from cd_code_ini_vars.F
643      - separated cd_code part from write_checkpoint
644      - updated AD_SOURCE, generated .flow
645      - added CD_CODE_VARS.h to the_main_loop
646      - Moving cd_code specific store dir.s to pkg/cd_code
647    o ctrl package totally restructured
648      - pack/unpack now optional and decoupled from
649        xx_/adxx_ I/O
650      - ctrl_pack/unpack cleaned
651        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
652      - confined inclusion of AD_CONFIG.h to where necessary.
653    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
654    
655    checkpoint51p_post
656    o create initial cd_code package
657      - WARNING: the initialization of fields within packages
658        is broken because INI_FIELDS (where READ_CHECKPOINT is
659        called) is called *before* PACKAGES_INIT_VARIABLES.
660        This seems to be backwards since
661        1) its important to initially zero the entire field including
662           the "halo" region
663        2) zeroing needs to be done *before* reading pickup info
664           and the pickup call might or might not happen in any
665           particular run
666      - this needs an overhaul for R2
667    o cleanup verification/*/code/GMREDI_OPTIONS.h
668    o cleanup testreport
669    
670    checkpoint51o_post
671    o bringing AD-related verif's up to date with genmake2
672      - carbon/
673      - global_ocean.90x40x15/
674      - hs.94.1x64x5/
675      - (front_relax/ )
676    o (more) consistent directory structure for AD-related verif.'s
677    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
678    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
679    o bug fix in find_alpha.F for MDJWF:
680      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
681        change rho -> rho-rhoConst
682      - replace call find_rho to find_rhonum
683    o initialisation of rFlx extended to full array (required by TAF)
684      and shifted to thermodynamics
685    o removed PTRACERS.h in ptracers routine
686    o added surfacetendencyPtr to S/R parameter list pracers_forcing
687    o Correcting initialisations for fVerU, fVerV.
688    o helping TAF to recognize dependency on kUp for
689      fVerU, fVerV
690    o Replacing delZ by delR in pkg/ctrl/
691    checkpoint51o_pre
692    
693    o undid all of cp51 pending some cleanups and discussion
694    o added the [#include "AD_CONFIG.h"] statement to all files that need
695       it for adjoint/tl #defines
696     o re-worked the build logic in genmake2 to support AD_CONFIG.h
697     o removed tools/genmake since it no longer works
698    
699    checkpoint51n_post
700    o modifications to make FREEZE flux visible to pkg/kpp
701      - moved surfaceTendencyTice from pkg/seaice to main code
702      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
703      - subroutine FREEZE now limits only surface temperature
704        (this means new output.txt for global_ocean.90x40x15,
705         global_ocean.cs32x15, and global_with_exf)
706    o added surface flux output variables to TIMEAVE_STATVARS
707    
708    checkpoint51n_pre
709    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
710    o added [#include "AD_CONFIG.h"] to all files that use the following
711      defines:
712      - ALLOW_ADJOINT_RUN
713      - ALLOW_TANGENTLINEAR_RUN
714      - ALLOW_ECCO_OPTIMIZATION
715    
716    checkpoint51m_post
717    o incorporating changes to get TAMC/TAF working in genmake2
718      - added new TAMC/TAF targets to the Makefile
719      - various cleanups related to package handling
720      - these changes should have no impact on the forward model
721    
722    checkpoint51l_post
723    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
724     - faster algorithm for cal_addtime.F
725     - higher precision arithmetic, where needed
726     - pkg/exf *startdate variables changed from calendar date to
727       model integration time
728    
729    checkpoint51l_pre
730    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
731    o enable to apply restoring on S & T only in a latitude band.
732    o update output (external_forcing_surf modif. change truncation errors)
733       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
734    
735    checkpoint51k_post
736    o change default to: useNHMTerms=.FALSE.
737     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
738       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
739     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
740        exp1, ideal_2D_oce
741     - change data file of oceanic exp (leave the results unchanged for now)
742       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
743    o set gravitySign automatically according to the vertical coordinate used
744      (and change sign: back to "logical" value: +1 when R increases downward)
745    o added an include barrier to the default CPP_OPTIONS.h and
746      removed the #include "PACKAGES_CONFIG.h" from it
747    o fix a bug in mom_fluxform (from chk51j_post)
748    
749    checkpoint51j_post
750    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
751    o adjusted some flow directives (dynamics, thermodynamics)
752    o added cubed-sphere case to test cost function
753    o heckpoint_lev?_directives.h now include
754      pkg-specific directives, whenever those are enabled.
755    o Moving pkg-specific flow directives to corresponding pkg
756      Moving pkg-specific differentiation list to corresponding pkg
757      Moving pkg-specific checkpoint-lev storing to corresponding pkg
758      ---> conventions are
759           - pkg_ad.flow
760           - pkg_ad_diff.list
761           - pkg_ad_check_lev?_dir.h
762    
763    checkpoint51i_post
764    o merge of the branch-genmake2
765      - knowingly breaks the older genmake
766      - automatic generation of all ALLOW_${PKG_NAME} defines
767      - new testreport supersedes older testscript
768    o large number of package inclusion and header cleanups
769    checkpoint51i_pre
770    
771    o new output for adjoin of global ocean vector invariant
772    o fix for checkpoint of thermodynamic seaice and bulk_force
773    o Steph gchem various cleanups
774    
775    checkpoint 51h_pre
776    o fixed some single quotes
777    o modify gchem pkg to be more versatile
778    o modifications to clean up dic pkg
779    o add pkg/cfc
780    
781    checkpoint51g_post
782    o provide links for ARPACK and ADM*TLM
783    o start removing verification/vero/
784    o update AD-related stuff
785      (in particular some IF-statements in model/src/ routines)
786    o adding to verification/global_ocean.90x40x15/ adjoint of
787      vector invariant setup
788    
789    checkpoint51f_post
790    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
791    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
792      of tracer Green's fucntions for ocean inversion project.
793    
794    checkpoint51f_pre
795    o Added on-the-fly spatial interpolation capability
796        "USE_EXF_INTERPOLATION" to pkg/exf.
797      - This is a temporary Cartesian-grid hack until
798        the super-duper ESMF coupler becomes available.
799      - See verification/global_with_exf/README for usage example.
800      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
801        flags and modified pkg/seaice accordingly.
802    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
803        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
804        non-local transport term.
805    
806    checkpoint51e_post
807    o pkg/mom_vecinv:
808      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
809      - add time-ave diagnostic of vorticity advection.
810    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
811    o atmospheric geopotential: - include water vapor effect;
812                                - use p^kappa in p* scaling.
813    o land pkg: read initial state from files.
814    o AIM : add stratospheric drag in the upper level
815    
816    checkpoint51d_post
817    o change function ILNBLNK (=> last non-blank char.) to return zero
818      (instead of the string length) when the string. char is empty
819    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
820    o modif's to restore TAMC compatibility
821      - avoid "_d" constructs in PARAMETER declarations
822      - avoid interrupting lines by comment lines
823    o Use cluster local disks for purely local I/O
824      vs. globally visible disks needed for ctrl stuff
825      (merged from ecco-branch)
826      - new active_file_loc... and mdsio_..._loc routines
827      - affected packages: autodiff, ctrl, grdchk, mdsio
828    
829    checkpoint51c_post
830    o introducing integer flag debugLevel
831      - debLevZero: suppress all output
832      - debLevA: standard
833      - debLevB: equivalent to current debugMode=.TRUE.
834    o introducing pathname variable mdsioLocalDir for mdsio
835      that can be specified at runtime
836      (relevant for cluster I/O to local disk)
837    `
838    >>>checkpoint51b_post
839    adjoint of ptracers
840    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
841    o extended state in checkpoint_lev?, etc.
842    o alternative ctrl/cost with tr1 or ptracer
843    o new comlev1_bibj_ptracers
844    o new ptracers.flow
845    o made ptracers_forcing same as external_forcing_s
846    o added verification for adjoint with ptracers
847      - adm. grdchk fail so far
848      - tlm. grdchk OK
849      - checked tapelev/comlev recomputations: OK
850    <<<checkpoint51b_pre
851    
852    checkpoint51a_post
853    o added code for biogeochemistry package
854      - new pkgs: dic, gchem
855      - new subroutine in ptracers
856    o modify code for biogeo packages
857      - in model/src and pkg/ptracers
858    
859    checkpoint51
860    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
861      - autodiff, ctrl, exf, grdchk, seaice
862      kept separate packages
863      - cost, ecco, obcs
864    o updating verification/internal_wave, verification/lab_sea
865      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
866    
867    checkpoint50i_post
868    o Preparing next differentiable checkpoint and sync
869      of MAIN vs. ecco-branch
870      - 1st step: this one is differentiable
871      - 2nd step: next(! not this) checkpoint will have updated packages
872                  from ecco-branch)
873    
874    checkpoint50h_post
875    o new package "land": provide surface BC for AIM.
876    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
877    o AIM: use true log-P extrapolation for near surface temp (= as in
878        F.Molteni paper) ; update aim.5l_cs output.
879    o New variable in PARM03 for more flexible pickups
880    o somewhat cleaned package initialisation sequence for
881      ctrl/ cost/ ecco/ in packages_... routines
882    
883    checkpoint50g_post
884    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
885      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
886      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
887        made the default because of faster convergence than ADI
888    
889    checkpoint50f_post
890    o exf totally restructured
891      - replaced all exf_set_ routines by one generic exf_set_gen.F
892        and made sure it's still differentiable
893      - split exf_getffields.F into new exf_bulkformulae.F
894      - exf_inscal_/exf_outscal_ suffixes consistent with field names
895      - updated adjoint/makefile and relevant verif. accordingly
896    
897    checkpoint50f_pre
898     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
899          + change Evap over land. (update aim.5l_cs output)
900     o added missing .cvsignores and made uniform across expts
901     o changed configuration of tidal_basin_2d expt
902     o added pkg/debug functions for tracing code in fatal crashes
903     o tidied pkg/monitor to use MONITOR_OPTIONS.h
904     o new fn in pkg/monitor to stop model if solution grows too big
905     o removed lots of single quotes from comments
906    
907    checkpoint50e_post
908    o make KPP work with PTRACERS
909     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
910       nearly a copy of kpp_transport_s
911     - there is no analogue to SurfaceTendencyS, so I have to use
912       gPtr(of the surface layer) instead
913    o add a new platform SunFire+mpi (SunFire 15000) to genmake
914    checkpoint50e_pre
915    
916    checkpoint50d_post
917    o change kpp output from multiple-record state files to single-record state
918      files analogous to write_state.F
919    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
920      analogous to the cg2d-related output.
921    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
922      so that writing to internal file fn (with length 512) fails.
923    checkpoint50d_pre
924    
925    checkpoint50c_post
926    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
927    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
928    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
929    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
930    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
931    
932    checkpoint50c_pre
933    Merging from release1_p13:
934    o bug fix for pkg/seaice dynamic solver
935    o Added SEAICE_initialHEFF to pkg/seaice
936    
937    checkpoint50b_post
938    o store u*,v* in gU,V instead of in guNm1,gvNm1
939    o in order to put the momForcing out of the Adams-Bashforth:
940      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
941      to timestep.F
942    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
943    o re-generate output for highly sensitive test-exp:
944       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
945    
946    checkpoint50b_pre
947    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
948    o corrected CPP option mismatch in exf_Bulk... functions for case
949      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
950    
951    checkpoint50a_post
952    o Bug fix for merging between c50 and KPP.
953      ikey was passed from thermodynamics to kpp_calc via
954      common block rather than being recomputed in kpp_calc,
955      in contradiction with new key itdkey.
956      New key ikppkey created, and tamc.h headers updated.
957    
958    checkpoint50
959    - 2nd step of merge with ecco-branch:
960      merge changes in ecco-branch back into main trunk
961    - bug fix in find_alpha
962    - more storing in gmredi_calc_tensor.F, kpp_routines.F
963    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
964    - merged some sliced AD support routines
965    
966    checkpoint49
967    merged from ecco-branch:
968    o exf:
969      - Enable initialisation of forcing fields to constant
970        (runtime) values.
971      - in exf_getffields.F
972        Reduce i-/j-loop to interior domain, discarding overlaps.
973        That also fixes wrong TAF-key computations for key_1, key_2
974        with bulf formulae.
975      - exf_init.F modify #ifdef for exf_init_evap
976      - exf_getffieldrec.F, ctrl_getrec.F
977        The following INT-usages are not safe:
978          fldsecs  = int(fldsecs/fldperiod)*fldperiod
979          fldcount = int(fldsecs/fldperiod) + 1
980        and were modified.
981    o autodiff: checkpoint_lev...
982      - updated storing for bulk formulae (some arrays were missing)
983      - added state for seaice package
984      - synchronized with main branch
985    o DIVA:
986      Modif.s in
987      - the_main_loop.F
988      - the_model_main.F
989      and added cost_final_restore.F cost_final_store.F
990      o With these changes, it is possible to fully separate
991        the first forward run to compute the cost function (mdthe_main_loop)
992        and adjoint runs over individual DIVA intervals (adthe_main_loop)
993        into separate model executions.
994        This enables better tuning of DIVA to given queue sizes.
995      o Loss of cost function value in consecutive DIVA runs is
996        fixed by storing to 'costfinal' file.
997      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
998        beginning/end of adjoint integration is accounted for.
999      The current changes apply to TAF-1.4.26.
1000      TAF has one remaining bug, requiring one manual change
1001      (see MITgcm manual).
1002    o cal: synchronized between MAIN and ecco-branch
1003    
1004    checkpoint48i_post
1005    o Changes to restore differentiability of code w.r.t. previous tag
1006      (mostly adding new routines to make list and replacing
1007      pressure by totPhiHyd).
1008    o Updated and merged grdchk package
1009      - has both ADM and TLM checks
1010      - works for single- and multi-proc.
1011      - output cleaned
1012      - worked successfully for parallel DIVA
1013    o genmake:
1014      - Adding -platform=SP4
1015      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1016    o Modif. for DIVA:
1017      ctrl_unpack should not be called in intermediate DIVA interval.
1018      (similar thing would apply for active files such as
1019      tbar, sbar, psbar, which should not be reinitialised;
1020      only relevant for ecco-branch)
1021    
1022    checkpoint48h_post
1023    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1024    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1025    o Added SEAICE_initialHEFF to pkg/seaice
1026    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1027    
1028    checkpoint48g_post
1029    --- EOS:
1030    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1031      store total Potential in totPhyHyd for diagnostics & EOS.
1032    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1033    --- Pressure/geopotential gradient:
1034    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1035    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1036      ( changes results of global_ocean_pressure )
1037    o NLFS + z-coord.: add eta*Rho' contribution.
1038    o accurate phiHyd when using interface-W at the middle between 2 centers
1039     ( changes results of ideal_2D_oce )
1040    o includes r* 2nd term in potential gradient.
1041    
1042    checkpoint48f_post
1043    Merging from release1_p12:
1044    o Modifications for using pkg/exf with pkg/seaice
1045      - improved description of the various forcing configurations
1046      - added basic radiation bulk formulae to pkg/exf
1047      - units/sign fix for evap computation in exf_getffields.F
1048      - updated verification/global_with_exf/results/output.txt
1049    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1050      (SBO) core products, including oceanic mass, center-of-mass,
1051      angular, and bottom pressure (see pkg/sbo/README.sbo).
1052    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1053      to avoid negative values in shallow regions.
1054      - updated verification/natl_box/results/output.txt
1055      - updated verification/lab_sea/results/output.txt
1056    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1057    o Added useSingleCpuIO option (see PARAMS.h).
1058    o Updated useSingleCpuIO option in mdsio_writefield.F to
1059      work with multi-field files, e.g., for single-file pickup.
1060    o pkg/seaice:
1061      - bug fix in growth.F: QNET for no shortwave case
1062      - added HeffFile for specifying initial sea-ice thickness
1063      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1064    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1065      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1066    o pkg/seaice:
1067      - adjoint-friendly modifications
1068      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1069    
1070    checkpoint48e_post
1071    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1072    o dynamics: change definition of computational domain & adapt mom_fluxform
1073      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1074    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1075        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1076        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1077        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1078        inverted_barometer solid-body.cs-32x32x1
1079      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1080    
1081    checkpoint48d_post
1082    o in preparation for r*:
1083     a) use pre-computed gradient of hydrostatic potential:
1084        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1085     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1086        => affects results of glob_oce_pressure (different truncation error)  
1087      update output.txt of ideal_2D_oce & global_ocean_pressure
1088    
1089    checkpoint48d_pre
1090    o in preparation for r*:
1091      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1092      pass the 2 comp. of the grad. as arguments to momentum S/R.
1093      but for the moment, only used if it does not change the results.
1094    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1095    
1096    checkpoint48c_post
1097    Modifications in treatment of initial flux forcing controls
1098    to avoid extra storing of flux fields.
1099    
1100    checkpoint48c_pre
1101    o Added tidal_basin_2d experiment (currently 1D!)
1102    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1103    
1104    checkpoint48b_post
1105    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1106     (modification to pressure gradient not yet implemented)
1107    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1108      (for U & V) that are used for vertical advection of momentum.
1109    
1110    checkpoint48a_post
1111    o In preparation for r*, use temp. array to compute vertical transport
1112       in flux-form momentum pkg. => change results of few test-exp.
1113      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1114                        lab_sea, natl_box & plume_on_slope
1115    
1116    checkpoint48
1117    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1118    
1119    checkpoint47j_post
1120    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1121    o moved adexch from forward_step to addummy_in_stepping
1122    o added exch in ctrl_map_...
1123    o aveFreq.=0. at end of cost_final to avoid overwrite in
1124      reverse checkpointing loop
1125    o Yet more changes in gmredi:
1126      * adgmredi_calc_tensor
1127        avoiding all recomputation of gmredi_slope_limit
1128      * adgmredi_x/y/rtransport
1129        added flag for excessive storing to avoid recomp. of
1130        u/v/rtans, dTdx/y/z
1131        -> this is not really necessary and very memory-consuming
1132      * adgmredi_slope_psi:
1133        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1134      * gmredi_slope_limit
1135        re-activated full calculation of taperfct for case 'ac02'
1136    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1137    
1138    checkpoint47i_post
1139    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1140    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1141      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1142    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1143    o gmredi: fix few bugs.
1144    
1145    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1146    This will be a good checkpoint to plug into the ecco-branch.
1147    o few modif.'s to get latest version adjointed
1148      (mainly kick out code in ini_linear_phisurf)
1149    o modif's to run adjoint with exactConserv
1150    o case GM_BOLUS_ADVEC should be cleaned
1151      S/R gmredi_slope_psi should be cleaned
1152    o verification/carbon now has exactConserv=.TRUE.
1153    
1154    checkpoint47g_post
1155    o time-average AIM output: becomes independent from statvars time-average
1156      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1157    o After TAF bug fix:
1158      Tested adjoint of gmredi package.
1159      Tests were done with checkpoint47 rather than with latest
1160      checkpoint47f_post since the latter is broken for the adjoint
1161      verification/carbon/ contains both ADM and TLM gradient checks.
1162    Here they are, before they get changed/lost/stolen.
1163    Mostly modif.'s to fix numerical sensitivities.
1164    Gradient checks OK for
1165    - GM_taper_scheme:
1166      * clipping
1167      * ac02
1168      * linear
1169      * glw91
1170      * dm95
1171      * ldd97
1172    - GMREDI_OPTIONS:
1173      * GM_VISBECK_VARIABLE_K
1174      * GM_NON_UNITY_DIAGONAL
1175      * GM_EXTRA_DIAGONAL
1176      * GM_BOLUS_ADVEC
1177    in conjunction with data.gmredi parameters to be checked in
1178    in a few minutes under verification/carbon/code/
1179    
1180    checkpoint47f_post
1181    Merging from release1_p10:
1182    o modifications for using pkg/exf with pkg/seaice
1183      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1184        and SEAICE_EXTERNAL_FLUXES
1185      - pkg/exf CPP options EXF_READ_EVAP and
1186        EXF_NO_BULK_COMPUTATIONS
1187      - usage examples are Experiments 8 and 9 in
1188        verification/lab_sea/README
1189      - verification/lab_sea default experiment now uses
1190        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1191    
1192    checkpoint47e_post
1193    o created a tag prior to creating a branch
1194    
1195    checkpoint47d_post
1196    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1197      at the bottom boundary had an erroneous half slip boundary condition
1198    o added bottom drag and no slip boundary condition capabilities to
1199      oceanic pressure coordinates code
1200    o added new verification experiment global_ocean_pressure, this experiment is
1201      also described in the tutorial section of the manual
1202    checkpoint47d_pre
1203    
1204    checkpoint47c_post
1205    o Added a verification experiment for a global cubed-sphere ocean run
1206      -  verification/global_ocean.cubed32x32x30
1207      -  uses pkg/therm_seaice and pkg/bulk_forcing
1208    
1209    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1210    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1211      when using P-coordinate; only implemented for atmospheric config.
1212    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1213      NOTES: requires option NONLIN_FRSURF to be "#define".
1214    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1215    
1216    checkpoint47b_post
1217    Merging from release1_p9:
1218    o pkg/seaice
1219      - removed GOTO's and added taf directives
1220      - double precision constants to reduce the g77 (Linux)
1221        to F77 (SGI) differences reported in release1_p8
1222    o tools/genmake
1223      - added SGI options
1224    o verification/testscript
1225      - updated to that of checkpoint47a_post
1226    o verification/global_ocean.90x40x15/input/eedata
1227      - modified for SGI f77 compatibility
1228    o verification/lab_sea
1229      - added description of sea-ice model
1230      - added missing matlab routines
1231      - added test of thermodynamics parallelization
1232    
1233    checkpoint47a_post
1234    o new pkg: aim_v23
1235     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1236       for now, keep the same surface forcing as before.
1237     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1238     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1239     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1240    o add diagnostic of surface correction term in monitor output
1241    
1242    o bulk_force and therm_seaice
1243    - Two packages:  bulk_force (Bulk forcing)
1244      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1245    - Earlier integration from Stephaine Dutkiewicz
1246      and Patrick Heimbach.
1247    - Two ifdef statements for compile time,
1248       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1249    
1250    checkpoint47
1251    differentiable version of checkpoint46n_post
1252    o bug fix in quasihydrostaticterms
1253    o * "clean" adjoint code (in terms of extensive recomputations)
1254        can now be obtained for all GMREDI options (i.e. for
1255        - GM_VISBECK_VARIABLE_K
1256        - GM_NON_UNITY_DIAGONAL
1257        - GM_EXTRA_DIAGONAL
1258        - GM_BOLUS_ADVEC )
1259      * However, wrong gradient check problem remains unsolved.
1260      * New CPP options have been introduced for different
1261        tapering schemes
1262    o external_fields_load now part of differentiation list
1263    o pressure needs multiple storing;
1264      would be nice to have store_pressure at beginning or
1265      end of forward_step, e.g. by having phiHyd global (5-dim.)
1266      (NB: pressure is needed for certain cases in find_rho,
1267      which is also invoked through convective_adjustment).
1268    o recomputations in find_rho for cases
1269     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1270    o #define ATMOSPHERIC_LOADING should be differentiable
1271    o ini_forcing shifted to begining of initialise_varia
1272    o Incorporating QNVS line search routines into MITgcm
1273      (this is separate code, and therefore not under pkg)
1274      lsopt/, optim/
1275    o Updated verification/carbon/
1276      - #define GM_VISBECK_VARIABLE_K
1277      - GM_taper_scheme    = 'ldd97'    
1278    
1279    checkpoint46n_post
1280    Merging from release1_p8:
1281    o verification/natl_box:
1282      updating new external_fields_load routine
1283    o New package: pkg/seaice
1284      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1285      The sea-ice code is based on Hibler (1979-1980).
1286      Two sea-ice dynamic solvers, ADI and LSR, are included.
1287      In addition to computing prognostic sea-ice variables and diagnosing
1288      the forcing/external data fields that drive the ocean model,
1289      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1290      The implied surface heat flux is then stored in variable
1291      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1292      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1293      non-local transport term.  Because this call precedes model
1294      thermodynamics, temperature under sea-ice may not be "exactly" at
1295      the freezing point by the time theta is dumped or time-averaged.
1296      N.B.: fairly large differences in accuracy occur across
1297            different platforms/compilers; comparison between
1298            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1299            generated output gives:
1300       T           S           U           V
1301      C D M    c        m  s        m  s        m  s        m  s
1302      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1303      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1304      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1305    
1306      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1307    o GAD:
1308      - generated new common blocks to account for call of
1309        same gad routines with differing traceridentities
1310        (needed to modify tracerIdentity indices in GAD.h)
1311      - generated separate common blocks for case useCubedSphereExchange
1312        (Department of Futurology)
1313      - parameter lists to gmredi_?transport: added tracerIdentity
1314      - added new key indices to tamc.h
1315    o external_fields_load:
1316      - added this routine to TAF list
1317      - needed to make some common blocks global and additional storing
1318        along the same lines as exf package (checkpoint_lev?_directives.h)
1319    o exf:
1320      updated external forcing package
1321      - bug fixes carried over from ecco-branch
1322        (missing OBCS_OPTIONS.h in two routines)
1323      - enable easy to use "no forcing".
1324      - added exf I/O for atmospheric loading
1325      - added exf I/O for runoff data
1326      - transfered scaling between exf <-> MITgcm to exf namelist
1327    o Adding new verification experiment global_with_exf.
1328      This verification experiment is almost identical to the
1329      global_ocean.90x40x15 experiment, except that it uses
1330      the exf (and cal) package instead of the
1331      external_fields_load routine (cf README file).
1332    
1333    checkpoint46m_post
1334    o modified testscript to return -- when there are no lines of "%MON" output
1335    o added new flag "quasiHydrostatic" for QH mode
1336      and new routine quasihydrostaticterms()
1337    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1338      New routine: mom_u_coriolis_nh()
1339    o fixed sign of non-hydrostatic metric terms in u and v equations.
1340      Depend on correct sign of gravitySign.
1341    o added work.pc* to .cvsignore in aim directories using ifc
1342    o introduced flag for controllin non-hydrostatic metric terms
1343    o removed gravitySign from PARM04
1344    o switched to g77/ifc from pgf77 in aim experiments
1345    
1346    checkpoint46l_post
1347    o made convective adjustment work with pressure coordinates:
1348     - changed the direction of k-loop in convective_adjustment.F for the
1349       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1350     - adjusted the reference pressure k-index in convective_adjustment.F
1351     - adjusted the convection condition in convect.F (in analogy to
1352       calc_ivdc.F)
1353     - convective_adjustment no longer computes anything on the halos
1354     - removed the warnings about negative salinity from find_rho.F and
1355       find_alpha.F; instead the new routine look_for_neg_salinity, called
1356       at the beginning of find_rho, find_alpha, and find_beta, does a
1357       check of the entire slice, if CPP-option
1358       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1359    checkpoint46l_pre
1360    
1361    checkpoint46k_post
1362    o fixed the verification/global_ocean.90x40x15 experiment:
1363     - new bathymetry (the world according to A., JMC, and M.)
1364     - new initial fields and forcing fields (*.bin files)
1365     - new POLY3.COEFFS (for the next release one should switch to a full
1366       equation of state: JMD95P or MDJWF)
1367     - fixed several errors and redundancies in the data file
1368     - experiment uses looped cells
1369     - added matlab directory with diagnostic scripts for plotting of output
1370    
1371    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1372     - read AIM physics parameters from a file (data.aimphys)
1373     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1374    
1375    checkpoint46j_post
1376    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1377    o move wVel computation at the end of the time step, in S/R integr_continuity
1378    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1379    o update timeave pkg for wVel diagnostic.
1380    checkpoint46j_pre
1381    
1382    checkpoint46i_post
1383    o Clean up AIM package (and keep the results unchanged):
1384      include CPP_OPTION and use IMPLICT NONE in all routines ;
1385      declare all the variables _RL ; use _d 0 for all numerical constants.
1386      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1387    
1388    checkpoint46h_post
1389    o cleaned up the use of rhoNil and rhoConst.
1390      - rhoNil should only appear in the LINEAR equation of state, everywhere
1391        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1392        and the dynamical equations are all divided by rhoConst
1393    o introduced new parameter rhoConstFresh, a reference density of fresh
1394      water, to remove the fresh water flux's dependence on rhoNil. The default
1395      value is 999.8 kg/m^3
1396    o cleanup up external_forcing.F and external_forcing_surf.F
1397      - can now be used by both OCEANIC and OCEANICP
1398    checkpoint46h_pre
1399    
1400     Added code to convert surface volume flux (fresh water) into
1401     a mass flux when using P coordinates in the ocean (OCEANICP).
1402     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1403    
1404    checkpoint46g_post
1405    o Include a new diagnostic variable phiHydLow for the ocean model
1406      - in z-coordinates, it is the bottom pressure anomaly
1407      - in p-coordinates, it is the sea surface elevation
1408      - in both cases, these variable have global drift, reflecting the mass
1409        drift in z-coordinates and the volume drift in p-coordinates
1410      - included time averaging for phiHydLow, be aware of the drift!
1411    o depth-dependent computation of Bo_surf for pressure coordinates
1412      in the ocean (buoyancyRelation='OCEANICP')
1413      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1414        Theta, Salinity, and Pressure in the parameter list. This routine is
1415        presently contained in find_rho.F. This routine does not give the
1416        correct density for 'POLY3', which would be a z-dependent reference
1417        density.
1418    o cleaned up find_rho
1419      - removed obsolete 'eqn' from the parameter list.
1420    o added two new verification experiments: gop and goz
1421      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1422    checkpoint46g_pre
1423    
1424    checkpoint46f_post
1425    o Enable tangent linear (forward mode) gradient checks:
1426      - extended active file handling to g_... files
1427      - added TANGENT_SIMULATION to theSimulationMode
1428      - extended grdchk package accordingly
1429    o added tangent linear setup in verification/carbon/code_ftl
1430    o added adjoint setup in verification/front_relax/code_ad
1431    
1432    checkpoint46e_post
1433    o Added new equation of state -> MDJWF
1434      - EOS of McDougall et al., 2002, JAOT, submitted
1435      - caveat: the equation of state is only valid for a smaller (more
1436        realistic?) range of values than JMD95P/Z and UNESCO
1437      - added masks to the calculation of pressure in store_pressure
1438      - added more check values for density in check_eos (ini_eos.F), some of
1439        the old check values are out of the range of the MDJWF-eos, so don't
1440        expect perfect matches for those
1441    checkpoint46e_pre
1442    
1443    checkpoint46d_post
1444    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1445      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1446      case of pressure coordinates. eosType='JMD95Z' in
1447      combination with buoyancyRelation='OCEANICP' now causes an error.
1448    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1449      in find_alpha/beta.
1450    checkpoint46d_pre
1451    
1452    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1453      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1454    
1455    checkpoint46c_post
1456    o Changes necessary for ocean in p-coordinates
1457     -  Added new buoyancy relation = 'OCEANICP'
1458     -  Added new parameters = gravitySign (this used to be contained inside
1459        the factor dRdZ which I added when we first switched to R coordinates).
1460     X GM/Redi is not compatible (yet)
1461     X bottom drag and no-slip need to be debugged.
1462    checkpoint46c_pre
1463    
1464    checkpoint46b_post
1465    o Added new equation of state -> JMD95Z and JMD95P
1466      - EOS of Jackett and McDougall, 1995, JAOT
1467      - moved all EOS parameters into EOS.h
1468      - new routines ini_eos.F, store_pressure.F
1469    o Added UNESCO EOS, but not recommended because it requires
1470      in-situ temperature (see JMD95)
1471    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1472      unesco.f to be used with POLY3
1473    checkpoint46b_pre
1474    
1475    checkpoint46a_post
1476    o Added (atmospheric) pressure loading
1477      - new field in FFIELDS.h, etc...
1478      - new cpp flag ATMOSPHERIC_LOADING
1479    o Changed hFacC to _hFacC in calc_phi_hyd.F
1480    o Added SHORTWAVE_HEATING to some files for consistency
1481    checkpoint46a_pre
1482    
1483    checkpoint46
1484    further merges from release1_p5
1485    o new ctrl package
1486      - adopted from ECCO environment to enable optimization
1487      - added Eliassen Palm fluxes to controls
1488    o added Eliassen Palm flux controls to gradient check package
1489    o cost package
1490      - Compatible with new ctrl package
1491      - added Eliassen Palm cost hooks
1492      - modif's of existing cost functions
1493    o Adjoint-related bug fixes in kpp:
1494      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1495      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1496    o autodiff package
1497      - flow directives:
1498        + new for S/R do_the_model_io
1499        + enhanced for S/R checkpoint
1500        + new gmredi.flow
1501      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1502        disable adcommon.h/g_common.h by default.
1503      - fixed problem for adjoint of global_max
1504    o modified verification/carbon/
1505    o New setup for adjoint of global_ocean
1506    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1507    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1508    o incorporated hooks for sponge layer code (external_forcing.F)
1509    
1510    checkpoint45d_post
1511    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1512    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1513      (affects plume_on_slope "cg2d" output)
1514    o add new parameter deltaTfreesurf for free-surface time stepping
1515    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1516  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1517  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
1518  o add new flags:  o add new flags:

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